An Archeological Find, again An article inArchaeometry involved an analysis of 26 samples ofRomano-British pottery found at four different kilnsites in the United Kingdom.7 The samples were analyzedto determine their chemical composition. Thepercentage of iron oxide in each of five samples collectedat the Island Thorns site was:1.28, 2.39, 1.50, 1.88, 1.51a. Calculate the range. b. Calculate the sample variance and the standarddeviation using the computing formula.c. Compare the range and the standard deviation. Therange is approximately how many standarddeviations?

5.3 Conditional Probability: Probability of A Given B 39 MODULE 12: BASIC PROBABILITY Chapter 5 Probability in Our Daily Lives 5.1 How Probability Quantifies Randomness Random phenomenon- We cannot predict the next outcome, however, after many outcomes a distinct predictable pattern appears. This pattern follows the laws of probability. Random does NOT mean haphazard – it is a kind of order that emerges only in the long run. Example: Studying the concept of probability when tossing a fair coin. a) What is the probability of getting a head if we toss a fair coin½ = 50% = 0.5 b) Flip the coin once. What is the result Do this in class – answers will vary. Tails or Heads Proportion of heads obtained in all your tosses so far:either 0 or 1 Is this close to the probability